2003 Alfa Romeo 156 vs. 2004 GMC Sierra
To start off, 2004 GMC Sierra is newer by 1 year(s). Which means there will be less support and parts availability for 2003 Alfa Romeo 156. In addition, the cost of maintenance, including insurance, on 2003 Alfa Romeo 156 would be higher. At 5,965 cc (8 cylinders), 2004 GMC Sierra is equipped with a bigger engine. In terms of performance, 2004 GMC Sierra (300 HP) has 181 more horse power than 2003 Alfa Romeo 156. (119 HP) In normal driving conditions, 2004 GMC Sierra should accelerate faster than 2003 Alfa Romeo 156. With that said, vehicle weight also plays an important factor in acceleration. 2004 GMC Sierra weights approximately 942 kg more than 2003 Alfa Romeo 156. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Let's talk about torque, 2004 GMC Sierra (488 Nm) has 342 more torque (in Nm) than 2003 Alfa Romeo 156. (146 Nm). This means 2004 GMC Sierra will have an easier job in driving up hills or pulling heavy equipment than 2003 Alfa Romeo 156.
Compare all specifications:
| 2003 Alfa Romeo 156 | 2004 GMC Sierra | |
| Make | Alfa Romeo | GMC |
| Model | 156 | Sierra |
| Year Released | 2003 | 2004 |
| Body Type | Sedan | Pickup |
| Engine Position | Front | Front |
| Engine Size | 1598 cc | 5965 cc |
| Engine Cylinders | 4 cylinders | 8 cylinders |
| Engine Type | in-line | V |
| Valves per Cylinder | 4 valves | 2 valves |
| Horse Power | 119 HP | 300 HP |
| Torque | 146 Nm | 488 Nm |
| Engine Bore Size | 82 mm | 102.1 mm |
| Engine Stroke Size | 75.6 mm | 92 mm |
| Engine Compression Ratio | 10.3:1 | 9.4:1 |
| Transmission Type | Manual | Manual |
| Number of Seats | 5 seats | 3 seats |
| Number of Doors | 4 doors | 2 doors |
| Vehicle Weight | 1340 kg | 2282 kg |
| Vehicle Length | 4440 mm | 5650 mm |
| Vehicle Width | 1750 mm | 2000 mm |
| Vehicle Height | 1400 mm | 1890 mm |
| Wheelbase Size | 2600 mm | 3380 mm |
| Fuel Tank Capacity | 63 L | 129 L |
